The German was asked about his young right-back coming off in the 48th minute against Crystal Palace.
After the shock 1-0 loss, which dents his team's title hopes, Klopp told reporters: "How it is on these days, something like that happens as well.
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"Conor overstretched his foot slightly. The first moment and what Conor felt didn't look great, (but) now I heard a little bit that it's settled quite quickly.
"I don't know. Is the ligament damaged or not? I don't know, so we will get this information tomorrow or Tuesday, but it was very painful for him so that's not cool."